7687741 has 2 divisors, whose sum is σ = 7687742. Its totient is φ = 7687740.

The previous prime is 7687739. The next prime is 7687763. The reversal of 7687741 is 1477867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5808100 + 1879641 = 2410^2 + 1371^2 .

It is a cyclic number.

It is not a de Polignac number, because 7687741 - 2¹ = 7687739 is a prime.

Together with 7687739, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 7687694 and 7687703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7687711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3843870 + 3843871.

It is an arithmetic number, because the mean of its divisors is an integer number (3843871).

Almost surely, 2^7687741 is an apocalyptic number.

It is an amenable number.

7687741 is a deficient number, since it is larger than the sum of its proper divisors (1).

7687741 is an equidigital number, since it uses as much as digits as its factorization.

7687741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65856, while the sum is 40.

The square root of 7687741 is about 2772.6775867381. The cubic root of 7687741 is about 197.3632317001.

The spelling of 7687741 in words is "seven million, six hundred eighty-seven thousand, seven hundred forty-one".